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Browse Journals & Magazines > Applied Physics Letters ...> Volume:89 Issue:22 Help

Ground state monoclinic (Mb) phase in (110)c BiFeO3 epitaxial thin films

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3 Author(s)
Xu, Guangyong ; Condensed Matter Physics and Materials Science Department, Brookhaven National Laboratory, Upton, New York 11973 ; Li, Jiefang ; Viehland, D.

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The lattice structure of (110)-oriented BiFeO3 epitaxial thin layers has been identified by synchrotron x-ray diffraction. By using (221) and (221) peaks in the (HHL) zone, a ground state monoclinic Mb phase has been observed with lattice parameters of (β;am/√2 and cm)=(89.35°;3.985 and 3.888 Å). These results demonstrate a change in phase stability from rhombohedral in bulk single crystals, to monoclinic in epitaxial thin films with two domain states whose polarization is slightly tilted away from [110] towards [111].

Published in:
Applied Physics Letters  (Volume:89 ,  Issue: 22 )

Date of Publication: Nov 2006

Page(s):
222901 - 222901-3
ISSN :
0003-6951
Digital Object Identifier :
10.1063/1.2392818
Product Type:
Journals & Magazines
Date of Current Version :
18 June 2009
Issue Date :
Nov 2006

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